Pop-up socket



FIG. 1 is a front view of a pop-up socket showing my new design;

FIG. 2 is a left view thereof; the right view being a mirror image thereof except for the threads;

FIG. 3 is a bottom view thereof;

FIG. 4 is a top thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a perspective view thereof; and,

FIG. 7 is another perspective view thereof, but showing the pop-up socket in an alternate position.

The portions of the pop-up socket shown in broken lines form no part of the claimed design. 

The ornamental design for a pop-up socket, as shown and described. 